"ACE" SUMP PUMP CHECK VALVE REDUCER SLEEVE *1-1/2"MPT x 1-1/2" / 1-1/4" *1-1/2"MPT inlet threads into sump pump *Rubbercoupling adapts to 1- 1/2" or 1-1/4" piping *Includes stainless hose clamps *Durable Delrin construction